Scientists Show How to Make an Invisibility Cloak

Scientists at the University of Rochester have created an optical-illusion device they're calling a sort of invisibility cloak.

When talking about invisibility cloaks, the Harry Potter series inevitably springs to mind. But this one wouldn't exactly be useful in aiding Harry and friends' exploits at Hogwarts

See also: Now You Feel It, Now You Don't: Nanomaterial Cloaks the Sense of Touch

It's a stationary trick that bends light around smaller objects — rulers and pens are used as examples by these researchers — so that they seem to have disappeared. Four regular lenses are arranged like this: Read more...

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